GB1164093A - Improvements in and relating to Devices for Severing and Recovering Submarine Cables - Google Patents

Improvements in and relating to Devices for Severing and Recovering Submarine Cables

Info

Publication number
GB1164093A
GB1164093A GB740668A GB740668A GB1164093A GB 1164093 A GB1164093 A GB 1164093A GB 740668 A GB740668 A GB 740668A GB 740668 A GB740668 A GB 740668A GB 1164093 A GB1164093 A GB 1164093A
Authority
GB
United Kingdom
Prior art keywords
cable
portions
operated
oil
severing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB740668A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pirelli and C SpA
Original Assignee
Pirelli SpA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pirelli SpA filed Critical Pirelli SpA
Publication of GB1164093A publication Critical patent/GB1164093A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/005—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for cutting cables or wires, or splicing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
    • B63C11/00—Equipment for dwelling or working underwater; Means for searching for underwater objects
    • B63C11/48—Means for searching for underwater objects
    • B63C11/50—Means for searching for underwater objects using grapnels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63G—OFFENSIVE OR DEFENSIVE ARRANGEMENTS ON VESSELS; MINE-LAYING; MINE-SWEEPING; SUBMARINES; AIRCRAFT CARRIERS
    • B63G7/00—Mine-sweeping; Vessels characterised thereby
    • B63G7/02—Mine-sweeping means, Means for destroying mines
    • B63G7/04—Mine-sweeping means, Means for destroying mines by means of cables
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/04—Processes
    • Y10T83/0448—With subsequent handling [i.e., of product]
    • Y10T83/0467—By separating products from each other

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Electric Cable Installation (AREA)
  • Cookers (AREA)
  • Earth Drilling (AREA)

Abstract

1,164,093. Grapnels. PIRELLI S.p.A. 15 Feb., 1968 [13 March, 1967], No. 7406/68. Heading B7S. A device which severs and recovers a cable from a sea bed, comprises a hook formed of two separable portions A, B, each suspended by a cable 3, 3<SP>1</SP>, means 19, (19<SP>1</SP>) clamping a cable in the hook, cutter means 25 severing a cable so hooked and means then disconnecting the portions A, B. The device includes oil reservoirs 4, 4<SP>1</SP> shaped as fins to prevent rotation of the device when lowered to the sea bed from a ship. Reservoirs 4, 4<SP>1</SP> contain electric motors 10, 11, (10<SP>1</SP>, 11<SP>1</SP>) connected to conductors in cables 3, 3<SP>1</SP>, and also contain pumps 8, 9, (8<SP>1</SP>, 9<SP>1</SP>) driven by the motors. When a cable enters the hooked portion load cells 31 indicate its presence, as do dynamometers on cable winches on the ship. Electric motors 10, (10<SP>1</SP>) are then operated, causing pumps 8, (8<SP>1</SP>) to supply oil to cylinders 12, (12<SP>1</SP>). Piston-rods 20, (20<SP>1</SP>) are thus retracted and levers 19, (19<SP>1</SP>) pivot in openings 18, 18<SP>1</SP> and clamp on to the cable. Motor 11 is then operated and pump 9 supplies oil to extend rod 28, thus pivoting blade 25 outwards. Electric motor (11<SP>1</SP>) on portion B is then operated and oil is supplied to extend plunger 14 (Fig. 2) which displaces portions A and B so that the clamped cable is severed between blade 25 and edge 26<SP>1</SP> on portion B. Continuing extension of plunger 14 releases the tongue and groove joints 1, 2 between the portions. The separate portions, each clamping an end of cable may then be brought to the surface.
GB740668A 1967-03-13 1968-02-15 Improvements in and relating to Devices for Severing and Recovering Submarine Cables Expired GB1164093A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT1364067 1967-03-13

Publications (1)

Publication Number Publication Date
GB1164093A true GB1164093A (en) 1969-09-10

Family

ID=11144555

Family Applications (1)

Application Number Title Priority Date Filing Date
GB740668A Expired GB1164093A (en) 1967-03-13 1968-02-15 Improvements in and relating to Devices for Severing and Recovering Submarine Cables

Country Status (6)

Country Link
US (1) US3516158A (en)
DE (1) DE1665416A1 (en)
DK (1) DK121131B (en)
FR (1) FR1556430A (en)
GB (1) GB1164093A (en)
NO (1) NO121556B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2292359A (en) * 1994-08-10 1996-02-21 Stc Submarine Systems Ltd A grapnel for underwater cable
US8608144B2 (en) 2006-01-11 2013-12-17 Ocean Cable Technologies Limited Cable Grippers

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4382625A (en) * 1981-01-13 1983-05-10 Labounty Roy E Grapple shear
JPS62267684A (en) * 1986-05-16 1987-11-20 Kokusai Denshin Denwa Co Ltd <Kdd> Detecting device for subaqueous laying cable
US5234242A (en) * 1990-04-19 1993-08-10 Kokusai Denshin Denwa Kabushiki Kaisha Submarine cable grapnel
US5127567A (en) * 1990-10-04 1992-07-07 Labounty Manufacturing, Inc. Rail processor
US6880378B1 (en) * 2001-07-18 2005-04-19 Vindee Industries, Inc. Chain cutter
US9948496B1 (en) 2014-07-30 2018-04-17 Silver Peak Systems, Inc. Determining a transit appliance for data traffic to a software service

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB971152A (en) * 1960-02-03 1964-09-30 Post Office Improvements in or relating to grapnels for submarine cables
US3319426A (en) * 1962-09-11 1967-05-16 Bell Telephone Labor Inc Equipment for and method of retrieving underwater cable
US3266353A (en) * 1965-03-30 1966-08-16 Bell Telephone Labor Inc Equipment for retrieving underwater cable

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2292359A (en) * 1994-08-10 1996-02-21 Stc Submarine Systems Ltd A grapnel for underwater cable
GB2292359B (en) * 1994-08-10 1998-04-29 Stc Submarine Systems Ltd A grapnel for underwater cable
US8608144B2 (en) 2006-01-11 2013-12-17 Ocean Cable Technologies Limited Cable Grippers

Also Published As

Publication number Publication date
NO121556B (en) 1971-03-15
DK121131B (en) 1971-09-13
FR1556430A (en) 1969-02-07
US3516158A (en) 1970-06-23
DE1665416A1 (en) 1971-02-11

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLE Entries relating assignments, transmissions, licences in the register of patents
PLNP Patent lapsed through nonpayment of renewal fees